Wide mouth flask



FIG. 1 is a side view of a wide mouth flask showing my new design;

FIG. 2 is a front view thereof.

FIG. 3 is a back view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top perspective view thereof.

The broken lines illustrate portions of the wide mouth flask which form no part of the claimed design. 

CLAIM What is claimed is the ornamental design for a wide mouth flask, as shown and described. 